Definition for Wakeful:

• Remaining awake, especially at night.

Synonyms for Wakeful:

• adj.

  •alert, restless (adjective)
  • on guard,
  • wary,
  • careful,
  • heedful,
  • on the qui vive,
  • Insomnious,
  • alive,
  • on the lookout,
  • on the alert,
  • attentive.

• n.

  •wakeful (noun)
  • shallow,
  • alert.

• Other synonyms:

  •
  • Slumberless,
  • unsleeping.
  •
  • restless,
  • with-it,
  • wide-awake,
  • observant.
  •Other relevant words:
  • ignite,
  • sharp-sighted,
  • bright,
  • provoke,
  • invoke,
  • unaccented,
  • idle,
  • energise,
  • loose,
  • unskillful,
  • fair,
  • low-cal,
  • easy,
  • intelligent,
  • call,
  • active,
  • guarded,
  • eagle-eyed,
  • qui vive,
  • lightheaded,
  • promiscuous,
  • keen-sighted,
  • aware,
  • sensitive,
  • sluttish,
  • unclouded,
  • friable,
  • kindle,
  • quick,
  • brief,
  • conjure,
  • ready,
  • sharp-eyed,
  • raise,
  • faint,
  • hawk-eyed,
  • abstemious,
  • thin,
  • arouse,
  • cautious,
  • lidless,
  • clear,
  • disturbed,
  • on one's guard,
  • comfortable,
  • feeble,
  • smart,
  • tripping,
  • lightsome,
  • revive,
  • keen,
  • agitate,
  • quick-sighted,
  • gimlet-eyed,
  • restive,
  • unblinking,
  • swooning,
  • lynx-eyed,
  • flimsy,
  • wistful,
  • weak,
  • lite,
  • enkindle,
  • nimble,
  • chary,
  • not burdensome,
  • prompt,
  • wanton,
  • clean,
  • agile,
  • certain,
  • circumspect,
  • on the job,
  • not sleeping,
  • short,
  • sharp,
  • elicit,
  • on the ball.

Antonyms for Wakeful:

• adj.

  • alert, restless
    unaware, sleepy.
  • Other antonyms:
    deep, careless, thoughtless, dozy, mesmerized, incautious, unvigilant, oblivious, unalert, slumberous, unawakened, somnolent, unwatchful, negligent, nodding, heedless, neglectful, dreaming, dull, unwary, inattentive, slumbering, hypnotized, inconsiderate, napping.